"We were able to complete all flight-test objectives with flawless engine operation," says P&W vice-president for the next-generation product family Bob Saia. "The engine performed exceptionally throughout the programme under extremely challenging tests," he adds.

P&W is now preparing to begin detail design of the first production PW1000G GTF engines in mid-2009 to power the Bombardier CSeries and Mitsubishi MRJ regional jet, which are due to enter service in 2013.